Run iPhoneDriveControl, it will ask for the location of iTunesMobileDevice, find it, then run. Ignore all the german scrolling in the trace window - the is alpha g*dd*mmit. When it runs, it will find the next available drive letter, use it to map to the phone, and then you have a drive letter for your phone's file system. You can use Windows Explorer or the command line, make no difference.

Right now it only shows the folders a non-jailbroken phone would show. He is trying to code it so it works without jailbreak.